/*####################全局设置########################*/
*{
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
html,body{
    min-width: 1200px;
    font-family: "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei";
    color: #333;
    font-size: 14px;
}
header{
    width: 100%;
    height: 140px;
    background-image: url("http://www.meilianzhonghe.com.cn/../assets/imgs_lx/school1_01.png");
    background-position: 50%;
    positon:relative;
    z-index: 1000;
}
footer{
    width: 100%;
    height: 138px;
}
main{
    overflow: hidden;
    positon:relative;
    margin-top: -140px;
}
.container{
    width: 100%;
    min-height: 500px;
    margin-bottom: -9999px;
    padding-bottom: 9999px;
}
/*####################header########################*/
header{
    display: -webkit-flex;
    display: flex;
}
header>div:first-child{
    flex: 1;
}
header>div:last-child{
    flex: 2;
}
header{
    position: relative;
    z-index: 100;
    overflow: hidden;
}
header>div:first-child{
    text-align: center;

}
header>div:last-child{
    display: -webkit-flex;
    display: inline-block;
}
header>div>img{
    margin-top: 22px;
}
.header_right{
    display: -webkit-flex;
    display: flex;
    flex-direction: column;
    width: 740px;
    margin-top: 30px;
    margin-right: 50px;
}
.header_right_top{
    display: -webkit-flex;
    display: flex;
    justify-content: flex-end;
    height: 50px;
}
.header_right_bottom{
    display: -webkit-flex;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-end;
    color: #333;
    font-size: 18px;
    text-decoration: none;
    margin-top: 10px;
}
.header_right_bottom>a{
    text-decoration: none;
    color: #333;
    font-size: 18px;
    margin-left: 25px;
}
.header_right_bottom>a:hover{
    color: #0096dc;
}
/*####################main########################*/
.title{
    display: -webkit-flex;
    display: flex;
    height: 170px;
    align-items: center;
}
.title>div{
    display: inline-block;
    margin: 0 auto;
}
.title>div>div{
    display: inline-block;
    text-align: center;
}
.title p:first-child{
    color: #1d1d1d;
    font-size: 22px;
}
.title p:last-child{
    color: #666;
    font-size: 14px;
    margin-top: 40px;
    text-decoration: underline;
}
.content_1>div:last-child{
    flex: 1;
    color: white;
    background-color: #1f62a1;
    padding: 0 20px 0 30px;
}
.content_1{
    display: -webkit-flex;
    display: flex;
    height: 600px;
}
.content_1>div:first-child{
    flex: 1;
    background-color: #009eb6;
}
.content_1 p{
    width: 500px;
}
.content_1 p:first-child{
    margin: 50px 0px 20px;
    font-size: 17px;
}
.content_1 p:nth-child(2){
    margin-top: 20px;
    font-size: 14px;
    line-height: 24px;
}
.content_1 p:nth-child(3){
    margin-top: 20px;
    font-size: 14px;
    line-height: 24px;
}
.content_1 a{
    display: inline-block;
    padding: 20px 0;
}
.content_2{
    height: 431px;
}
.content_2>ul{
    height: 431px;
    background-color: red;
    margin-right: -9999px;
    padding-right: 9999px;
    overflow: hidden;
}
.content_2 li{
    float: left;
    width: 354px;
    height: 306px;
    background-color: #003333;
    margin-right: 15px;
}


.content_3{
    display: -webkit-flex;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 860px;
    background-image: url("http://www.ai-bipet.com/skin/../assets/imgs_lx/index2.jpg");
    background-repeat: no-repeat;
}
.content_3_1{
    position: relative;
    width: 1200px;
    height: 607px;
    background-color: rgba(0,0,0,0.33);
}
.content_3_1>div:first-of-type{
    position: absolute;
    top: 230px;
    left: 40px;
    width: 325px;
    height: 280px;
    border: 2px solid white
}
.content_3_1_1>div:first-of-type{
    position: absolute;
    top: -50px;
    right: -50px;
    width: 325px;
    height: 280px;
    background-color: #B5B7C6;
}
.content_3_1_1>div:nth-of-type(2){
    position: absolute;
    top: -50px;
    right: -50px;
    width: 325px;
    height: 280px;
    background-color: #B5B7C6;
}
.content_3_1_1>div:nth-of-type(3){
    position: absolute;
    top: -60px;
    right: -60px;
    width: 325px;
    height: 280px;
    background-color: #515473;
}
.content_3_1_1>div:nth-of-type(4){
    position: absolute;
    top: -70px;
    right: -70px;
    width: 325px;
    height: 280px;
    border: 1px solid yellow;
}
.content_3_1_1_1{
    position: absolute;
    top: 0;
    left: 0;
}
.content_3_1_1>div:last-of-type{
    position: absolute;
    top: -70px;
    right: -70px;
    width: 325px;
    height: 280px;
    background-color: rgba(0,0,0,0.33);
}
.content_3_1_2{
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: 0 auto;
    width: 632px;
    height: 547px;
    border: 1px solid red;
}
.content_3_1_2>div{
    position: absolute;
    top: 265px;
    left: -80px;
    display: flex;
    justify-content: space-around;
    width: 160px;
    height: 80px;
    background-color: rgba(102,98,121, 0.33);
    z-index: 500;
}
.content_3_1_2>div>div:first-of-type{
    flex: 1;
    height: 80px;
    text-align: center;
    line-height: 80px;
}
.content_3_1_2>div>div:last-of-type {
    flex: 1;
    height: 80px;
    text-align: center;
    line-height: 80px;
}
.content_3_1_3{
    position: absolute;
    right: 0;
    top: 74px;
    margin: 0 auto;
    width: 360px;
    height: 428px;
    background-color: #2161A0;
    z-index: 600;
}
.content_3_1_3>div{
    position: relative;
    height: 100%;
    padding: 15px;
}
.content_3_1_3>div>p:first-of-type{
    width: 95px;
    height: 50px;
    margin-top: 45px;
    margin-left: -62px;
    color: #333;
    font-size: 16px;
    background-color: white;
    text-align: center;
    line-height: 50px;
}
.content_3_1_3>div>p:nth-of-type(2){
    margin-top: 30px;
    color: white;
    font-size: 12px;
    line-height: 24px;
}
.content_3_1_3>div>a{
    position: absolute;
    bottom: 0;
    margin-bottom: 50px;
}

.extend{
    position: relative;
    left: 175px;
    top: -163px;
    width: 632px;
    height: 547px;
    border: 1px solid blue;
    z-index: 100;
transform：translate(632px,547px, 1s);
    transition: all 3s;
}
.normal{
}
.reduce{

}

.content_4{
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 540px;

}
.content_4_1{
    color: #033;
    background-color: #003333;
}
.content_4_2{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    width: 1300px;
}
.content_4_2>div>div{
    width: 300px;
    height: 180px;
}
.content_4_2_1{
    overflow : hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    height: 180px;
    padding-left: 24px;
    padding-right: 19px;
}
.content_4_2_1:hover{

}
.content_4_2>div{
    position: relative;
    color: #9a9a9a;
    height: 180px;
}
.content_4_2_1>div>span{
    font-size: 48px;
}
.content_4_2_1>div>p{
    position: absolute;
    left: 52px;
    top: 28px;
    font-size: 12px;
    padding: 1px;
    background-color: white;
}
.content_4_2_1>p{
    overflow : hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-top: 10px;
    line-height: 24px;
}
.content_4_2_1>p:first-of-type{
    -webkit-line-clamp: 1;
    font-size: 15px;
    color: #333;
}
.content_4_2_1>p:last-of-type{
    -webkit-line-clamp: 2;
    font-size: 12px;
    color: #666;
}
.content_5{
    display: flex;
    flex-direction: column;
    height: 575px;
    align-items: center;
    margin: 0 auto;
    background-image: url("http://www.ai-bipet.com/skin/../assets/imgs_lx/index4.jpg");
    background-repeat: no-repeat;
}
.content_5_1{
    width: 1190px;
    height: 100%;
    font-size: 13px;
}
#content_5_1_1>div{
    display: flex;
    flex-direction: row;
    width: 100%;
    height: 100%;
    justify-content: flex-start;
}
#content_5_1_1 .el-card{
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 auto;
    width: 272px;
    height: 373px;
    margin: 0 15px;
}
#content_5_1_1 p{
    overflow : hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
#content_5_1_1 p:first-of-type{
    -webkit-line-clamp: 1;
    margin: 10px;
    color: #333;
    font-size: 15px;
}
#content_5_1_1 p:last-of-type{
    -webkit-line-clamp: 2;
    margin: 10px 15px;
    color: #666;
    font-size: 13px;
}
#content_5_1_1 .el-card a:link{
    color: #fe4b4b;
    display: inline-block;
    margin: 0 auto;
}
#content_5_1_1 .el-card>div:last-of-type{
    text-align: center;
}
/*####################footer########################*/
footer{
    display: flex;
    flex-direction: row;
    background-image: url("http://www.meilianzhonghe.com.cn/../assets/imgs_lx/school_42.png");
    background-position: 50%;
    color: #868686;
    font-size: 12px;
    margin-top: -60px;
}
footer>div:first-child{
    flex: 1;
}
footer>div:nth-child(2){
    flex: 1;
    vertical-align: middle;
}
footer>div:last-child{
    flex: 1;
    vertical-align: middle;
}
.footer_left{
    position: relative;
    color: #868686;
    font-size: 12px;
    margin-left: 150px;
}
.footer_left>div{
    position:absolute;
    display: table-cell;
    vertical-align: middle;
    left:50%;
    top:50%;
    transform:translate(-50%,-50%);
}
.footer_center{
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.footer_left p:last-child{
    position: relative;
    margin-top: 5px;
}
.footer_center>div:first-child{
    display: flex;
    align-items: center;
}
.footer_center span{
    margin-left: 15px;
}
.footer_center>div:last-child{
    display: flex;
    align-items: center;
    margin-top: 8px;
}